Oenothera speciosa
white evening primrose
Flower Colors
Description
A herbaceous perennial about 30cm high, with creeping rhizomes, basal rosettes of oblong-lance-shaped to lance-shaped mid-green leaves, 2.5-5cm long, which have large triangular teeth or are pinnatifid, arching stems with slightly smaller leaves, and saucer-shaped flowers, up to 8cm across, which open white in the day and become pale pink in the evening, from early summer to early autumn; it is occasionally invasive
Mature Height
0.5m
Mature Spread
0.5m
Plant Characteristics
Foliage
Deciduous
Growth Habit
Suckering
Growth Speed
Slow · 0.1 m/yr
Soil Texture
ChalkLoamSand
Soil pH
AcidAlkalineNeutral
Soil Moisture
Well-drained
Hardiness (RHS)
H7
Hardiness (USDA)
Zones 5-9
Flowering Season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Key Features
Drought resistantCity and courtyard gardensCoastalCottage and informal gardenGravel gardenPrairie plantingLow MaintenanceBanks and slopesFlower borders and beds